Saturday 6 December 2014

SMLG in SAP

Logon Load Balancing SMLG
It is used to route requests to the least loaded instance of that group.

1.Buffers are optimally utilized
2.Load balancing is avoid long queues.
3.Fail over

Mechanism
1.User used SAP GUI -groups option to login
2.Saplogon.ini is used to display the available entries
3.User select the group and click on logon.
4.When the user select the group.It look for sapmsg.ini to identify the message server and etc/services for message server port.saproute.ini,saprfc.ini,sapdoccd.ini(For library),saplogon.ini
5.Message server communicates will all the dispatchers and identifies the least loaded server and mark it as a favorite server in SMLG. The request is routed to the favorite server.
6.The dispatcher process the requests normally.

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